Networks

Why We Need Gigabit Networks

There is currently a great deal of debate regarding the need for gigabit networks. There are still a lot of voices, often led by conservative political and media people, who argue that hardly anyone needs such networks. Unfortunately for them, however, their arguments are totally flawed. And who are they, anyway, to set the tone for such new infrastructure. Isn't necessity the mother of invention? more

What’s Holding Back NFV Deployments?

Back in early 2012, the media was all over stack wars that reportedly were taking place between Cisco and VMware. This culminated in VMware's Nicira acquisition in July 2012, paving the way for the coming of software-based networking. Four years later, the market still remains in development mode. Many service providers and enterprises are trying to come to grips with Network Function Virtualization (NFV) and Software-Defined Networking (SDN). more

Caidagram: Visualising Geographically Annotated Internet Measurements

With measurement networks rapidly evolving up to hundreds of nodes, it becomes more and more challenging to extract useful visualisations from tons of collected data. At the same time, geographical information related to Internet measurements (either known or inferred with state-of-the-art techniques) can be exploited to build tools based on geography as a common knowledge base. We wanted to develop a tool to visualise different classes of geographically annotated Internet data, e.g., topology, address allocation, DNS and economical data. more

On the Internet Everyone is Connected to Everyone Else - Right?

We tend to make a number of assumptions about the Internet, and sometimes these assumptions don't always stand up to critical analysis. We were perhaps 'trained' by the claims of the telephone service to believe that these communications networks supported a model of universal connectivity. Any telephone handset could establish a call with any other telephone handset was the underlying model of a ubiquitous telephone service, and we've carried that assumption into our perception of the Internet. On the Internet anyone can communicate with anyone else - right? more

Resources for Cleaning Your Network

The first step (but certainly not the last) towards saving the internet from spam, malware, and other abuse is to keep your own network clean. A friend of CAUCE, who wishes to remain anonymous, offers these tips and resources to help you identify problem traffic emanating from your network, and clean it up. Though primarily written for ISPs, many of the items below should apply equally well to any network owner. more

US Smart Grid Networks Exploiting Infrastructure to Provide Wireless Broadband

The USDA Rural Development's Rural Utilities Service (RUS) has now spent the $250 million committed for smart grid technologies. To this has been added an additional $201 million in funding approved by the Agriculture Secretary to electricity utilities in eight states to install smart grid technologies and improve their generation and transmission facilities. The beneficiaries are spread among a large number of states. more

VoIP Security Predictions for 2009

Here are my VoIP and Voice security predictions for 2009, limited to just a few, key predictions... The poor economy will slow the adoption rate for VoIP and Unified Communications (UC). This will continue to limit the size of the enterprise VoIP deployments for potential hackers to exploit. VoIP/UC will continue to be mostly an internal/campus application where the threat level for attack is low, so deployments will be largely secured along the same lines as other data network applications. more

The Appeal Against Broadband Reclassification

A British perspective on a very American process... As a new member of the the "Tech Elders", I was invited to join yesterday's hearing in Washington, DC on the reclassification of broadband Internet access services. The US Federal Communications Commission (FCC) has decreed that Internet access should switch from being lightly regulated as an 'information service' (Title I) to a more heavily regulated as 'telecommunications service' (Title II). I'd first like to say that the process and content was a credit to the rule of law in the United States. more

Securing the Routing System at NANOG 74

The level of interest in the general topic of routing security seems to come in waves in our community. At times it seems like the interest from network operators, researchers, security folk and vendors climbs to an intense level, while at other times the topic appears to be moribund. If the attention on this topic at NANOG 74 is anything to go by we seem to be experiencing a local peak. more

NANOG 95: From Faster Fibre to Route Leaks, Operators Face Old Problems with New Tools

The NANOG 95 conference spotlighted breakthroughs in fibre optics, wireless technology, routing security, and quantum computing, offering a forward-looking assessment of internet infrastructure and its vulnerabilities, as reported by APNIC's Geoff Huston. more

Wow, a U.S. Ministry of 5G

This seemed to be the reaction this morning worldwide to the leaked alleged PowerPoint slides detailing the White House strategic options for a U.S. national 5G infrastructure. The gist of the slides has apparently been confirmed to Reuters by unnamed "Trump security team members." The options apparently range between creating a U.S. Ministry of 5G resembling the old world of government Post, Telegraph and Telecommunication (PTT) agencies of bygone years, and sawing off the U.S. ICT infrastructures and services from the rest of the world. more

Connecting the Next Billion. Is It Possible? (An African Perspective)

This year, the IGF Multistakeholder Advisory Group which provide assistance in the preparations for Global IGF meetings called for Intersessional work (activities that are pursued in the months between annual IGFs with the aim of helping the IGF produce more tangible outputs that can become robust resources). Previously, the IGF has used best Practice Forums and Dynamic coalitions to bring out key issues that affect the world as it relates to the Internet. This year's Intersessional activity is centred on "Policy Option for connecting the Next Billion". more

DDoS Attack Size Breaks 100 Gbps for First Time, Up 1000% Since 2005

"2010 should be viewed as the year distributed denial of service (DDoS) attacks became mainstream as many high profile attacks were launched against popular Internet services and other well known targets," reports Arbor Networks in its just released Sixth Annual Worldwide Infrastructure Security Report. According to the report, the year also witnessed a sharp escalation in the scale and frequency of DDoS attack activity on the Internet. The 100 Gbps attack barrier was reached for the first time while application layer attacks hit an all-time high. Service providers experienced a marked impact on operational expense, revenue loss and customer churn as a result. more

Filtering the Internet Is Still a Bad Idea: DCA, ABC, and Steroid Searches

A few days ago, ABC News ran an "investigative" piece called "Group Probes Ease and Danger of Buying Steroids Online." ABC describes the "group" at issue as "an online watchdog," the Digital Citizens Alliance. That group determined that some of the millions of available YouTube videos encourage steroid use and that YouTube (which is owned by Google) places ads next to steroid-related videos and search results. They argue that Google and YouTube should be held legally responsible for any illegal content linked or posted. more

Is the Internet Fragmenting? Join the Discussion Live - Tuesday, May 10, at 3:30pm US EDT

Is the global, open Internet moving away from a network of networks that is universally accessible to a series of networks fragmented along policy, technical or economic lines? As some governments pass laws related to data localization and restriction of cross-border data flows, what will the impact be? What about the increasing use of DNS and content filtering? What other factors have the potential for causing fragmentation? more